It wasn't until just a few years ago that I tasted real bread.

VOA: standard.2010.07.16

It wasn't until 1645 at the age of thirty-six or thirty-seven that Milton would publish his first volume of poems, which he titled simply Poems.

直到1645年他36或37时,弥尔顿才出版了第一部诗集，就叫《弥尔顿十四行诗集》

耶鲁公开课 - 弥尔顿课程节选

and it wasn't until maybe fifty years later that cars came in

而且差不多直到50年后，才有了汽车，

旧金山的公共交通 - SpeakingMax英语口语达人

You probably don't think of it that way because you say, wait a minute, the computer wasn't invented until the 1940s.

你们可能不那么想,你们会说，等等，电脑不是直到，上世纪四十年代才发明出来的吗。

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But it really wasn't until, I would say, the arrival of Java that object-oriented C++ programming caught the popular attention.

但是知道Java的诞生，才吸引了大众的关注,而后Java和。

麻省理工公开课 - 计算机科学及编程导论课程节选

It wasn't until the 20th century, so almost 200 years later, that we learned how to do this.

在詹纳研制出天花疫苗二百多年后,直到二十世纪,我们才知道如何做到这一点

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So what actually turns out the reality is that h e 2 does exist, but it exists as the weakest chemical bond known, and it wasn't, in fact, even found to exist until 1993, so I can assure you this is not a bond that you see very often in nature, and it is a very, very weak bond.

实际上He2键是存在的，但它是目前所知的最弱的键，直到1993年它才被发现，所以我可以向你们保证在,自然界你们不可能经常看到它，它是种非常非常弱得键。

麻省理工公开课 - 化学原理课程节选

It wasn't until after the war that we created a new Bank of the United States in 1816 and gave it a twenty-year charter as well.

直到战争结束,我们才于1816年建立了一个新的美国银行,并且又给了它20年的许可证。

耶鲁公开课 - 金融市场课程节选